Up and running for £500? No offense but if thats all you're prepared to spend it will be a load of crap.
Better to get a proper system and look like a pro.
125 Water Tank from Chic Cleaning £101.05
100 psi Shu Flo Pump on Ebay £79.99
Di Tank and Resin from Chic Cleaning £99.88
Metal Hose Reel from Chic Cleaning £63.45
100m Microbore From Wintec £43.18
12' pole with brush head from Cleantech £45.03
Various fittings from anywhere £20.00
all the above is brand new and never been used before and include vat but not delivery.
Total Spent = £452.58
Change £47.42 to spend on leaflets to get your first customers.
All of the above is used in your fancy systems that cost thousands so if the above is crap then so are the fancy systems.